[PATCH] spi: spi-xilinx: fix for_each_child.cocci warnings

From: Julia Lawall <julia.lawall@inria.fr>
To: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Cc: kbuild-all@lists.01.org, lkp@intel.com,
	linux-arm-kernel@lists.infradead.org,
	Michal Simek <monstr@monstr.eu>,
	Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>,
	Tejas Prajapati Rameshchandra <tejaspra@xilinx.com>,
	Naga Sureshkumar Relli <nagasure@xilinx.com>,
	Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>,
	Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	linux-spi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] spi: spi-xilinx: fix for_each_child.cocci warnings
Date: Sun, 26 Jun 2022 10:18:46 -0400 (EDT)	[thread overview]
Message-ID: <alpine.DEB.2.22.394.2206261016410.2194@hadrien> (raw)

From: kernel test robot <lkp@intel.com>

for_each_available_child_of_node should have of_node_put() before return around line 697.
for_each_available_child_of_node should have of_node_put() before break around line 703.

Generated by: scripts/coccinelle/iterators/for_each_child.cocci

Fixes: 3973536c4560 ("spi: spi-xilinx: Updated axi-qspi controller driver")
CC: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
---

tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15_LTS
head:   59523b5c4aca0174f1f8cba2a07d3b3328b7c80e
commit: 3973536c456079bf3d09e9a97bf33d29422b183f [861/1181] spi: spi-xilinx: Updated axi-qspi controller driver
:::::: branch date: 5 days ago
:::::: commit date: 5 months ago

Please take the patch only if it's a positive warning. Thanks!

 drivers/spi/spi-xilinx.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -693,13 +693,16 @@ static int xilinx_spi_probe(struct platf
 		if (startup_block) {
 			ret = of_property_read_u32(nc, "reg",
 						   &cs_num);
-			if (ret < 0)
+			if (ret < 0) {
+				of_node_put(nc);
 				return -EINVAL;
+			}
 		}
 		ret = of_property_read_u32(nc, "spi-rx-bus-width",
 					   &rx_bus_width);
 		if (!ret) {
 			xspi->rx_bus_width = rx_bus_width;
+			of_node_put(nc);
 			break;
 		}
 	}
